题目内容
解方程:
x×(1+
|
|
|
|
(1)x×(1+
)=60,
x=60,
x×
=60×
,
x=48;
(2)
÷x=
,
÷x×x=
x
×
=
x×
,
x=2;
(3)
x-
=
,
x-
+
=
+
,
x×
=1×
,
x=
;
(4)
:
=
,
=
×
,
×3=
×3,
x=
.
| 1 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 4 |
| 5 |
| 4 |
| 5 |
x=48;
(2)
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 8 |
| 3 |
| 3 |
| 8 |
| 8 |
| 3 |
x=2;
(3)
| 15 |
| 16 |
| 3 |
| 4 |
| 1 |
| 4 |
| 15 |
| 16 |
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
| 15 |
| 16 |
| 16 |
| 15 |
| 16 |
| 15 |
x=
| 16 |
| 15 |
(4)
| x |
| 3 |
| 1 |
| 2 |
| 4 |
| 9 |
| x |
| 3 |
| 1 |
| 2 |
| 4 |
| 9 |
| x |
| 3 |
| 2 |
| 9 |
x=
| 2 |
| 3 |
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